S
M
T
W
T
F
S
1
90°
59°
2
90°
59°
3
84°
59°
4
82°
54°
5
78°
54°
6
70°
48°
7
78°
50°
8
87°
61°
9
79°
59°
10
74°
57°
11
81°
56°
12
90°
56°
13
90°
57°
14
89°
60°
15
89°
59°
16
92°
60°
17
95°
64°
18
100°
62°
19
103°
65°
20
104°
65°
21
103°
65°
22
99°
67°
23
98°
66°
24
96°
67°
25
96°
64°
26
97°
66°
27
99°
63°
28
93°
70°
29
95°
66°
30
91°
72°
31
88°
73°
1
82°
66°
2
83°
63°
3
87°
57°
4
89°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Fountain Hills
Fountain Hills's March 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for March is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how March weather will actually feel in Fountain Hills. See also: April | May | June.